House Pointers

Pointers I've learned

ALWAYS build ABOVE code-requirements. Since you are doing this yourself, it will cost you peanuts, and cover-your-ass if you screw up ;)

Make all your Hallways at LEAST 36", 40" ideally. All your doors at least 36" too.

Access covers: over stuff you rarely need to get to (like shut-offs, plumbing/chimney clean-outs, etc. Label where each of them are!

Bonuses

Things you can do that NO other kit-built home has. Things to give a personal touch for VERY little extra money:

Add lots of space for stuff. I.e. if you find hollow areas, don't just drywall over them, use them for storage

Cat-5 (Ethernet) in every room (including kitchens & bathrooms!)! Cost: $50 spool of wire. I did two "drops" in each room.

Central Vacuum System. Install the Pipes (cheap) even if you don't ever use it, it is a good selling point.

Put a (cheap) plywood as Floor in your attic, so you don't damage the ceiling drywall below. Makes your attic more useful. Secure it temporarily to allow access.

Showers: Tile the Ceiling! Avoid repainting every 2-5 years when the mildew forms. Costs next-to-nothing, and looks pretty awesome ;)

Plugs behind places you want to hang TVs; like 5 feet off the ground, with Ethernet + cable too.

Speakers All over the house, connected to a central location (outside too)

Dad's Real Estate Advice (Paraphrased):

Real estate prices will go up and down your entire life.
You can't predict it. No one can perfectly.
But when you buy low. You sell low. Buy high. Sell high.
So unless you are going to "live under a bridge" (i.e. Rent lol) or carry 2 properties for the short term (expensive).
It doesn't matter the timing of your purchase+sale.
Buy something massively undervalued. That has been re-listed many times.
Buy fixer uppers.
The worse the better!!!
Aim for the hilariously destroyed.
With condos, buy the shittest unit in the best building.
Finally, make sure if you "get stuck" in this place for 5 years, you can be happy.

If a Basement Suite

The Best Tenants are those you Cannot Hear, see, use all your hot water, etc.

Built shelving in on top of your foundation-wall, rather than running the studs floor-to-ceiling

Separately Meter your Electrical. Even if you can't do it through BCHydro, meter is so YOU can charge your tenants what they use!